<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <!-- 

    -->
    <!-- 准备一个容器 -->
    <div id="root">
        <!-- 遍历数组 -->
        <h2>人员列表</h2>
        <button @click="updateMei()">更新马冬梅信息</button>
        <ul>
            <li v-for="(p,index) of persons" :key="p.id">
                {{p.name}}-{{p.age}}-{{p.sex}}
            </li>
        </ul>
    </div>
</body>
    <script>
        const vm = new Vue({
            el:'#root',
            data:{
                sortType:0,
                keyWord:'',
                persons:[
                    {
                        id:'001',
                        name:'马冬梅',
                        age:18,
                        sex:'女'
                    },
                    {
                        id:'002',
                        name:'周冬雨',
                        age:20,
                        sex:'女'
                    },
                    {
                        id:'003',
                        name:'周杰伦',
                        age:21,
                        sex:'男'
                    },
                    {
                        id:'004',
                        name:'温兆伦',
                        age:22,
                        sex:'男'
                    }
                ]
            },
            methods:{
                updateMei(){
                    // 奏效
                    // this.persons[0].name = '马老师',
                    // this.persons[0].age = 50,
                    // this.persons[0].sex = '男'

                    // 失效
                    this.persons[0] =                     {
                        id:'001',
                        name:'马老师',
                        age:50,
                        sex:'男'
                    }
                }
            }
        })
    </script>
</html>